BMW N63 - E70, E71 and E72 Timing Chain Test Plan Path

Important note: For F01, F02, F04, and F07 vehicles, check the operation of the trunk release with the
remote. If the trunk does not open with the remote, refer to the special procedure in SI B66 04 15.
L
eave the ICOM connected to the vehicle.
E70, E71 and E72 Timing Chain Test Plan Path:
1. Select “Troubleshooting”
2. Select “Function structure”
3. Select “Drive”
4. Select “Engine electronics, quality control valve (MSV)”
5. Select “Valve gear”
6. Select “Start Search”
7. From the list of available test plans select “Exhaust camshaft”, and then follow with the “Display” and
then “Continue” buttons
8. Select “Bank 1” and Continue
9. Select “Timing chain test” and follow the steps to complete the test plans
If the test plan results indicate the timing chains are stretched (“Timing chain is not OK”), replace both timing
chains per Repair Instruction 11 31 052 “Replacing both timing chains \ PREMIUM” after completing the
remaining portion of the vehicle evaluation procedure outlined in SI B11 06 14.
IMPORTANT - Before starting the engine for the first time and after replacing the timing chains:
1
. Fill the engine with the specified amount of engine oil.
2. Connect a battery charger to the vehicle.
3. Remove the electric fuel pump fuse. Refer to the applicable wiring diagram using the vin number of the
vehicle in ISTA/D.
4. Crank the engine for 10 seconds.
5. After 10 seconds have elapsed, stop the starter, and allow the starter to cool for 20 seconds.
6. Repeat steps 4 and 5 two additional times.
7. Reinstall the electric fuel pump fuse and start the engine. Verify proper engine operation.
Important: Repair Instruction 11 31 052 for “Replacing both timing chains \
P
REMIUM” describes the “replacement” of the engine oil pan gasket (seal).
Failure to replace this gasket (seal) as outlined in the repair instruction can result in an
engine oil leak and an unnecessary return visit to your workshop. Also, using liquid
sealer to substitute the required replacement of this gasket (seal) on the engine is “not
a proper” repair.
A repair to correct engine oil leakage that results from not replacing the engine oil pan
gasket (seal) as required during a previous repair is not a Warranty issue.
Do not discard the replaced parts. These parts will be requested by the Warranty Parts Return Center
(WPRC).When the defective timing chains are removed from the engine label them with cylinder head
bank (1 or 2) they were removed from.
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